<template>
  <footer class="footer">
    <span class="todo-count">剩余<strong>{{ len }}</strong></span>
    <ul class="filters">
      <li>
        <a :lass="{selected: type ==='all'}" href="javascript:;"  @click="$emit('changeType', `all`)">全部</a>
      </li>
      <li>
        <a :lass="{selected: type ==='no'}" href="javascript:;" @click="$emit('changeType', `no`)">未完成</a>
      </li>
      <li>
        <a :lass="{selected: type ==='yes'}" href="javascript:;" @click="$emit('changeType', `yes`)" >已完成</a>
      </li>
    </ul>
    <button class="clear-completed" @click="$emit('clearTask')">清除已完成</button>
  </footer>
</template>

<script>
export default {
  props:{
   type: String,
   len: Number
  },
}
</script>